EPA sets limit for toxic pollutants released into waterways

September 30, 2015 byMatthew Daly

In this Feb. 5, 2014 file photo, coal ash swirls on the surface of the Dan River as state and federal environmental officials continued their investigations of a spill of coal ash into the river in Danville, Va. Duke Energy estimates that up to 82,000 tons of ash has been released from a break in a 48-inch storm water pipe at the Dan River Power Plant in Eden N.C. The Environmental Protection Agency (EPA) on Wednesday imposed new standards for mercury, lead and other toxic pollutants that are discharged into the nation's rivers and streams from steam electric power plants. (AP Photo/Gerry Broome, File)

The Environmental Protection Agency on Wednesday imposed new standards for mercury, lead and other toxic pollutants that are discharged into the nation's rivers and streams from steam electric power plants.

If exposed at high levels, the pollutants can cause neurological damage in children, lead to cancer and damage the circulatory system, kidneys and livers.

EPA Administrator Gina McCarthy said the rules, the first national limits on pollutants from coal-fired steam electricity plants, "will provide significant protections for our children and communities across the country, including minority and low-income communities, from exposure to pollutants that can cause ... serious health problems."

The rule will remove 1.4 billion pounds a year of toxic metals discharged nationwide, including mercury, arsenic, lead and selenium, the EPA said.

The EPA said most of the nation's 1,080 steam electric power plants already meet the requirements. About 12 percent, or 134 plants, will have to make new investments to meet the new rules, including dozens of plants across the South and Midwest.

More than 23,000 miles of rivers and streams across the country are polluted by steam electric discharges, which occur close to 100 public drinking water intakes and nearly 2,000 public wells across the nation, the EPA said.

Toxic metals do not break down in the environment and can contaminate sediment in waterways and harm aquatic life and wildlife, including killing large numbers of fish. Steam electric power plants account for about 30 percent of all toxic pollutants discharged into streams, rivers and lakes from U.S. industrial facilities.

The new standards come as Duke Energy agreed Tuesday to pay North Carolina regulators $7 million to settle allegations of groundwater pollution at its coal ash pits and to perform accelerated cleanups costing millions of dollars at four sites. Coal ash is the waste left after coal is burned to generate electricity and contains toxic heavy metals including arsenic and mercury.

Duke agreed in May to plead guilty to nine criminal violations of the federal Clean Water Act and pay more than $102 million in fines and restitution for failing to contain water contaminated by coal residues at five North Carolina coal-burning plants. A massive spill at a Duke coal ash pond in Eden, N.C., coated 70 miles of the Dan River in gray sludge in 2014.

The wastewater rule is one of three major actions expected this week as the EPA announces a flurry of new rules intended to reduce air and water pollution.

On Tuesday, the agency set new rules to reduce toxic air pollution from oil refineries by forcing operators to adopt new technology that better monitors and controls emissions. The rules will require for the first time that refineries install air monitors along "fence lines" where benzene and other toxic emissions enter neighboring communities.

The EPA faces a court-ordered deadline of Thursday to set a new limit on smog-forming pollution linked to asthma and respiratory illness. Officials are expected to set an ozone limit of 70 parts per billion or less in the atmosphere, down from the existing standard of 75.

Related Stories

The Environmental Protection Agency announced new rules Tuesday to reduce toxic air pollution from oil refineries by forcing operators to adopt new technology that better monitors and controls emissions.

The Supreme Court ruled Monday against the Obama administration's attempt to limit power plant emissions of mercury and other hazardous air pollutants, but it may only be a temporary setback for regulators.

A federal appeals court on Tuesday ordered the Environmental Protection Agency to relax some limits it set on smokestack emissions that cross state lines and taint downwind areas with air pollution from power plants.

A Supreme Court ruling that undermined a federal rule targeting mercury pollution will not affect the Obama administration's plan to limit greenhouse gas emissions to slow the effects of global warming, the head of the Environmental ...

New University of Colorado Boulder-led research has established a causal link between climate warming and the localized extinction of a common Rocky Mountain flowering plant, a result that could serve as a herald of future ...

A NASA study based on an innovative technique for crunching torrents of satellite data provides the clearest picture yet of changes in Antarctic ice flow into the ocean. The findings confirm accelerating ice losses from the ...

Cyanobacteria - which propel the ocean engine and help sustain marine life - can shift their colour like chameleons to match different coloured light across the world's seas, according to research by an international collaboration ...

Like avalanches onshore,many processes cause submarine landslides. One very widespread assumption is that they are associated with dissociating gas hydrates in the seafloor. However, scientists at GEOMAR Helmholtz Centre ...